6729919139 has 16 divisors (see below), whose sum is σ = 6844954368. Its totient is φ = 6616220832.

The previous prime is 6729919099. The next prime is 6729919153. The reversal of 6729919139 is 9319199276.

It is a cyclic number.

It is not a de Polignac number, because 6729919139 - 2²⁴ = 6713141923 is a prime.

It is a super-3 number, since 3×6729919139³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6729919169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7419524 + ... + 7420430.

It is an arithmetic number, because the mean of its divisors is an integer number (427809648).

Almost surely, 2^6729919139 is an apocalyptic number.

6729919139 is a deficient number, since it is larger than the sum of its proper divisors (115035229).

6729919139 is a wasteful number, since it uses less digits than its factorization.

6729919139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its digits is 1653372, while the sum is 56.

The square root of 6729919139 is about 82036.0843714521. The cubic root of 6729919139 is about 1888.0056170646.

The spelling of 6729919139 in words is "six billion, seven hundred twenty-nine million, nine hundred nineteen thousand, one hundred thirty-nine".